Heritage Black Chronograph - The Chronograph I laid the foundation for Porsche Design in 1972. The new edition, the Black Chronograph, follows the design 1:1. Thanks to a special lacquer, the timepiece is entirely black. For reduced light reflections. Automatic movement with Porsche Design Rotorsystem ETA Valjoux 7750. Hours, minutes, seconds, chrongraph functions, day and date indication, 46h power reserve, 28'800 A/h, Waterproof to 100 m.